Follow-up test after the 20-week scan:
If anything special is seen at the 20-week scan or in case the sonographer is in doubt, an Advanced Ultrasonography Examination (GUO, in Dutch: Geavanceerd Ultrageluid Onderzoek) is offered. Additionally, it is possible that after the GUO an amniocentesis, chorion villus sampling or bloodtest ( NIPT) is offered.
Click here for additional information about extensive ultrasonography examination (nl).
Click here for additional information about NIPT.
If you would like specific information please click here for information about Chorionic Villus Sampling (CVS) (nl) or amniocentesis (nl).
Follow-up test after the combined test:
In the case of an increased risk of Down Syndrome, Patau Syndrome and/or Edwards Syndrome, an appointment is scheduled at very short notice at the department of prenatal diagnostics of the Radboud hospital in Nijmegen or the Rijnstate hospital in Arnhem. A very extensive ultrasound is performed there and follow-up tests like the NIPT ore invasive procedures like chorionvillus sampling ore amnionpunction will be discussed with a doctor.
To make choices
It is extremely important that expectant parents are very well informed about possible investigations to look for anomalies at the unborn child. It is also important to explain that not everything is possible to see ore detect. Mostly parents are calmed because the investigations looked fine. But of course this is not always the case. It is possible that parents are made anxious and afterwards nothing appeared to be wrong with the baby. We call this “false positive” results. And there are others that are confronted with shocking finings which need difficult decision making. It appears that, thoughts and ideas from parents before the investigation, may change completely once an anomaly is detected. For both parents and practitioner always a heavily and challenging situation.